http://www.clambake.org/archive/books/bfm/bfm06.htm
"On Saturday 2 December [1944], Jack Williamson, then a Sergeant in the US Army, hosted a dinner in Philadelphia for fellow science-fiction writers and their wives. He was to be sent overseas in a couple of days and this was his farewell party. Among those present were the Heinleins, the de Camps, the Asimovs and L. Ron Hubbard."
PoD: A natural gas leak causes a massive explosion and fire, killing everyone at the dinner...
"On Saturday 2 December [1944], Jack Williamson, then a Sergeant in the US Army, hosted a dinner in Philadelphia for fellow science-fiction writers and their wives. He was to be sent overseas in a couple of days and this was his farewell party. Among those present were the Heinleins, the de Camps, the Asimovs and L. Ron Hubbard."
PoD: A natural gas leak causes a massive explosion and fire, killing everyone at the dinner...